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vme_pcc.c revision 1.22.8.1
      1  1.22.8.1     skrll /*	$NetBSD: vme_pcc.c,v 1.22.8.1 2009/04/28 07:34:27 skrll Exp $	*/
      2       1.1     chuck 
      3       1.1     chuck /*-
      4       1.7       scw  * Copyright (c) 1996-2000 The NetBSD Foundation, Inc.
      5       1.1     chuck  * All rights reserved.
      6       1.1     chuck  *
      7       1.1     chuck  * This code is derived from software contributed to The NetBSD Foundation
      8       1.7       scw  * by Jason R. Thorpe and Steve C. Woodford.
      9       1.1     chuck  *
     10       1.1     chuck  * Redistribution and use in source and binary forms, with or without
     11       1.1     chuck  * modification, are permitted provided that the following conditions
     12       1.1     chuck  * are met:
     13       1.1     chuck  * 1. Redistributions of source code must retain the above copyright
     14       1.1     chuck  *    notice, this list of conditions and the following disclaimer.
     15       1.1     chuck  * 2. Redistributions in binary form must reproduce the above copyright
     16       1.1     chuck  *    notice, this list of conditions and the following disclaimer in the
     17       1.1     chuck  *    documentation and/or other materials provided with the distribution.
     18       1.1     chuck  *
     19       1.1     chuck  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20       1.1     chuck  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21       1.1     chuck  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22       1.5       jtc  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23       1.5       jtc  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24       1.1     chuck  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25       1.1     chuck  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26       1.1     chuck  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27       1.1     chuck  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28       1.1     chuck  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29       1.1     chuck  * POSSIBILITY OF SUCH DAMAGE.
     30       1.1     chuck  */
     31       1.1     chuck 
     32       1.1     chuck /*
     33       1.1     chuck  * VME support specific to the Type 1 VMEchip found on the
     34       1.1     chuck  * MVME-147.
     35       1.1     chuck  *
     36       1.1     chuck  * For a manual on the MVME-147, call: 408.991.8634.  (Yes, this
     37       1.1     chuck  * is the Sunnyvale sales office.)
     38       1.1     chuck  */
     39      1.18     lukem 
     40      1.18     lukem #include <sys/cdefs.h>
     41  1.22.8.1     skrll __KERNEL_RCSID(0, "$NetBSD: vme_pcc.c,v 1.22.8.1 2009/04/28 07:34:27 skrll Exp $");
     42       1.1     chuck 
     43       1.1     chuck #include <sys/param.h>
     44       1.1     chuck #include <sys/kernel.h>
     45       1.1     chuck #include <sys/systm.h>
     46       1.1     chuck #include <sys/device.h>
     47       1.7       scw #include <sys/malloc.h>
     48       1.7       scw #include <sys/kcore.h>
     49       1.1     chuck 
     50       1.1     chuck #include <machine/cpu.h>
     51       1.7       scw #include <machine/bus.h>
     52       1.7       scw 
     53       1.7       scw #include <dev/vme/vmereg.h>
     54       1.7       scw #include <dev/vme/vmevar.h>
     55       1.7       scw 
     56       1.1     chuck #include <mvme68k/dev/pccreg.h>
     57       1.1     chuck #include <mvme68k/dev/pccvar.h>
     58      1.15       scw 
     59      1.15       scw #include <dev/mvme/mvmebus.h>
     60       1.1     chuck #include <mvme68k/dev/vme_pccreg.h>
     61       1.7       scw #include <mvme68k/dev/vme_pccvar.h>
     62       1.7       scw 
     63       1.1     chuck 
     64      1.10       scw int vme_pcc_match(struct device *, struct cfdata *, void *);
     65      1.10       scw void vme_pcc_attach(struct device *, struct device *, void *);
     66       1.1     chuck 
     67      1.17   thorpej CFATTACH_DECL(vmepcc, sizeof(struct vme_pcc_softc),
     68      1.17   thorpej     vme_pcc_match, vme_pcc_attach, NULL, NULL);
     69       1.6   thorpej 
     70       1.7       scw extern struct cfdriver vmepcc_cd;
     71       1.7       scw 
     72       1.7       scw extern phys_ram_seg_t mem_clusters[];
     73       1.7       scw static int vme_pcc_attached;
     74       1.7       scw 
     75      1.12       scw void vme_pcc_intr_establish(void *, int, int, int, int,
     76      1.14       scw     int (*)(void *), void *, struct evcnt *);
     77      1.14       scw void vme_pcc_intr_disestablish(void *, int, int, int, struct evcnt *);
     78       1.7       scw 
     79       1.1     chuck 
     80      1.10       scw static struct mvmebus_range vme_pcc_masters[] = {
     81      1.11       scw 	{VME_AM_A24 |
     82      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
     83      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
     84      1.11       scw 		VME_D32 | VME_D16 | VME_D8,
     85       1.7       scw 		VME1_A24D32_LOC_START,
     86      1.10       scw 		VME1_A24_MASK,
     87       1.7       scw 		VME1_A24D32_START,
     88       1.7       scw 		VME1_A24D32_END},
     89       1.7       scw 
     90      1.11       scw 	{VME_AM_A32 |
     91      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
     92      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
     93      1.11       scw 		VME_D32 | VME_D16 | VME_D8,
     94       1.7       scw 		VME1_A32D32_LOC_START,
     95      1.10       scw 		VME1_A32_MASK,
     96       1.7       scw 		VME1_A32D32_START,
     97       1.7       scw 		VME1_A32D32_END},
     98       1.7       scw 
     99      1.11       scw 	{VME_AM_A24 |
    100      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
    101      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    102      1.11       scw 		VME_D16 | VME_D8,
    103       1.7       scw 		VME1_A24D16_LOC_START,
    104      1.10       scw 		VME1_A24_MASK,
    105       1.7       scw 		VME1_A24D16_START,
    106       1.7       scw 		VME1_A24D16_END},
    107       1.7       scw 
    108      1.11       scw 	{VME_AM_A32 |
    109      1.11       scw 	    MVMEBUS_AM_CAP_DATA  | MVMEBUS_AM_CAP_PROG |
    110      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    111       1.7       scw 		VME_D16 | VME_D8,
    112       1.7       scw 		VME1_A32D16_LOC_START,
    113      1.10       scw 		VME1_A32_MASK,
    114       1.7       scw 		VME1_A32D16_START,
    115       1.7       scw 		VME1_A32D16_END},
    116       1.7       scw 
    117      1.11       scw 	{VME_AM_A16 |
    118      1.11       scw 	    MVMEBUS_AM_CAP_DATA  |
    119      1.11       scw 	    MVMEBUS_AM_CAP_SUPER | MVMEBUS_AM_CAP_USER,
    120       1.7       scw 		VME_D16 | VME_D8,
    121       1.7       scw 		VME1_A16D16_LOC_START,
    122      1.10       scw 		VME1_A16_MASK,
    123       1.7       scw 		VME1_A16D16_START,
    124       1.7       scw 		VME1_A16D16_END}
    125       1.7       scw };
    126      1.10       scw #define VME1_NMASTERS	(sizeof(vme_pcc_masters)/sizeof(struct mvmebus_range))
    127       1.1     chuck 
    128       1.1     chuck 
    129       1.7       scw /* ARGSUSED */
    130       1.1     chuck int
    131  1.22.8.1     skrll vme_pcc_match(struct device *parent, struct cfdata *cf, void *aux)
    132       1.1     chuck {
    133       1.7       scw 	struct pcc_attach_args *pa;
    134       1.7       scw 
    135       1.7       scw 	pa = aux;
    136       1.1     chuck 
    137       1.1     chuck 	/* Only one VME chip, please. */
    138       1.7       scw 	if (vme_pcc_attached)
    139       1.1     chuck 		return (0);
    140       1.1     chuck 
    141       1.7       scw 	if (strcmp(pa->pa_name, vmepcc_cd.cd_name))
    142       1.1     chuck 		return (0);
    143       1.1     chuck 
    144       1.1     chuck 	return (1);
    145       1.1     chuck }
    146       1.1     chuck 
    147       1.1     chuck void
    148  1.22.8.1     skrll vme_pcc_attach(struct device *parent, struct device *self, void *aux)
    149       1.1     chuck {
    150       1.7       scw 	struct pcc_attach_args *pa;
    151       1.7       scw 	struct vme_pcc_softc *sc;
    152      1.11       scw 	vme_am_t am;
    153      1.21   tsutsui 	uint8_t reg;
    154       1.7       scw 
    155       1.7       scw 	sc = (struct vme_pcc_softc *) self;
    156       1.7       scw 	pa = aux;
    157       1.7       scw 
    158      1.10       scw 	/* Map the VMEchip's registers */
    159      1.13       scw 	bus_space_map(pa->pa_bust, pa->pa_offset, VME1REG_SIZE, 0,
    160       1.7       scw 	    &sc->sc_bush);
    161       1.1     chuck 
    162      1.13       scw 	/* Initialise stuff used by the mvme68k common VMEbus front-end */
    163      1.13       scw 	sc->sc_mvmebus.sc_bust = pa->pa_bust;
    164      1.13       scw 	sc->sc_mvmebus.sc_dmat = pa->pa_dmat;
    165      1.13       scw 	sc->sc_mvmebus.sc_chip = sc;
    166      1.13       scw 	sc->sc_mvmebus.sc_nmasters = VME1_NMASTERS;
    167      1.13       scw 	sc->sc_mvmebus.sc_masters = &vme_pcc_masters[0];
    168      1.13       scw 	sc->sc_mvmebus.sc_nslaves = VME1_NSLAVES;
    169      1.13       scw 	sc->sc_mvmebus.sc_slaves = &sc->sc_slave[0];
    170      1.13       scw 	sc->sc_mvmebus.sc_intr_establish = vme_pcc_intr_establish;
    171      1.13       scw 	sc->sc_mvmebus.sc_intr_disestablish = vme_pcc_intr_disestablish;
    172      1.13       scw 
    173       1.1     chuck 	/* Initialize the chip. */
    174       1.7       scw 	reg = vme1_reg_read(sc, VME1REG_SCON) & ~VME1_SCON_SYSFAIL;
    175       1.7       scw 	vme1_reg_write(sc, VME1REG_SCON, reg);
    176       1.1     chuck 
    177       1.3  christos 	printf(": Type 1 VMEchip, scon jumper %s\n",
    178       1.7       scw 	    (reg & VME1_SCON_SWITCH) ? "enabled" : "disabled");
    179       1.1     chuck 
    180       1.7       scw 	/*
    181      1.10       scw 	 * Adjust the start address of the first range in vme_pcc_masters[]
    182       1.7       scw 	 * according to how much onboard memory exists. Disable the first
    183       1.7       scw 	 * range if onboard memory >= 16Mb, and adjust the start of the
    184       1.7       scw 	 * second range (A32D32).
    185       1.7       scw 	 */
    186      1.10       scw 	vme_pcc_masters[0].vr_vmestart = (vme_addr_t) mem_clusters[0].size;
    187       1.7       scw 	if (mem_clusters[0].size >= 0x01000000) {
    188      1.10       scw 		vme_pcc_masters[0].vr_am = MVMEBUS_AM_DISABLED;
    189      1.10       scw 		vme_pcc_masters[1].vr_vmestart +=
    190       1.7       scw 		    (vme_addr_t) (mem_clusters[0].size - 0x01000000);
    191       1.7       scw 	}
    192       1.1     chuck 
    193      1.11       scw 	am = 0;
    194      1.11       scw 	reg = vme1_reg_read(sc, VME1REG_SLADDRMOD);
    195      1.11       scw 	if ((reg & VME1_SLMOD_DATA) != 0)
    196      1.11       scw 		am |= MVMEBUS_AM_CAP_DATA;
    197      1.11       scw 	if ((reg & VME1_SLMOD_PRGRM) != 0)
    198      1.11       scw 		am |= MVMEBUS_AM_CAP_PROG;
    199      1.11       scw 	if ((reg & VME1_SLMOD_SUPER) != 0)
    200      1.11       scw 		am |= MVMEBUS_AM_CAP_SUPER;
    201      1.11       scw 	if ((reg & VME1_SLMOD_USER) != 0)
    202      1.11       scw 		am |= MVMEBUS_AM_CAP_USER;
    203      1.11       scw 	if ((reg & VME1_SLMOD_BLOCK) != 0)
    204      1.11       scw 		am |= MVMEBUS_AM_CAP_BLK;
    205      1.11       scw 
    206      1.11       scw #ifdef notyet
    207      1.11       scw 	if ((reg & VME1_SLMOD_SHORT) != 0) {
    208      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_am = am | VME_AM_A16;
    209      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_mask = 0xffffu;
    210      1.11       scw 	} else
    211      1.11       scw #endif
    212      1.11       scw 		sc->sc_slave[VME1_SLAVE_A16].vr_am = MVMEBUS_AM_DISABLED;
    213      1.11       scw 
    214      1.11       scw 	if (pcc_slave_base_addr < 0x01000000u && (reg & VME1_SLMOD_STND) != 0) {
    215      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_am = am | VME_AM_A24;
    216      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_datasize = VME_D32 |
    217      1.11       scw 		    VME_D16 | VME_D8;
    218      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_mask = 0xffffffu;
    219      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_locstart = 0;
    220      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_vmestart = pcc_slave_base_addr;
    221      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_vmeend = (pcc_slave_base_addr +
    222      1.11       scw 		    mem_clusters[0].size - 1) & 0x00ffffffu;
    223      1.11       scw 	} else
    224      1.11       scw 		sc->sc_slave[VME1_SLAVE_A24].vr_am = MVMEBUS_AM_DISABLED;
    225      1.11       scw 
    226      1.11       scw 	if ((reg & VME1_SLMOD_EXTED) != 0) {
    227      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_am = am | VME_AM_A32;
    228      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_datasize = VME_D32 |
    229      1.11       scw 		    VME_D16 | VME_D8;
    230      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_mask = 0xffffffffu;
    231      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_locstart = 0;
    232      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_vmestart = pcc_slave_base_addr;
    233      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_vmeend =
    234      1.11       scw 		    pcc_slave_base_addr + mem_clusters[0].size - 1;
    235      1.11       scw 	} else
    236      1.11       scw 		sc->sc_slave[VME1_SLAVE_A32].vr_am = MVMEBUS_AM_DISABLED;
    237      1.11       scw 
    238      1.11       scw 	vme_pcc_attached = 1;
    239       1.1     chuck 
    240      1.10       scw 	mvmebus_attach(&sc->sc_mvmebus);
    241       1.7       scw }
    242       1.7       scw 
    243       1.7       scw void
    244  1.22.8.1     skrll vme_pcc_intr_establish(void *csc, int prior, int level, int vector, int first, int (*func)(void *), void *arg, struct evcnt *evcnt)
    245       1.7       scw {
    246      1.10       scw 	struct vme_pcc_softc *sc = csc;
    247       1.7       scw 
    248      1.12       scw 	if (prior != level)
    249      1.19       wiz 		panic("vme_pcc_intr_establish: CPU priority != VMEbus irq level");
    250      1.12       scw 
    251      1.14       scw 	isrlink_vectored(func, arg, prior, vector, evcnt);
    252       1.7       scw 
    253      1.10       scw 	if (first) {
    254      1.14       scw 		evcnt_attach_dynamic(evcnt, EVCNT_TYPE_INTR,
    255      1.14       scw 		    isrlink_evcnt(prior), sc->sc_mvmebus.sc_dev.dv_xname,
    256      1.14       scw 		    mvmebus_irq_name[level]);
    257      1.14       scw 
    258       1.7       scw 		/*
    259      1.10       scw 		 * There had better not be another VMEbus master responding
    260      1.10       scw 		 * to this interrupt level...
    261       1.7       scw 		 */
    262      1.10       scw 		vme1_reg_write(sc, VME1REG_IRQEN,
    263      1.10       scw 		    vme1_reg_read(sc, VME1REG_IRQEN) | VME1_IRQ_VME(level));
    264       1.7       scw 	}
    265       1.7       scw }
    266       1.1     chuck 
    267       1.7       scw void
    268  1.22.8.1     skrll vme_pcc_intr_disestablish(void *csc, int level, int vector, int last, struct evcnt *evcnt)
    269       1.7       scw {
    270      1.10       scw 	struct vme_pcc_softc *sc = csc;
    271       1.7       scw 
    272       1.7       scw 	isrunlink_vectored(vector);
    273       1.7       scw 
    274      1.10       scw 	if (last) {
    275       1.7       scw 		vme1_reg_write(sc, VME1REG_IRQEN,
    276       1.7       scw 		    vme1_reg_read(sc, VME1REG_IRQEN) & ~VME1_IRQ_VME(level));
    277      1.14       scw 		evcnt_detach(evcnt);
    278       1.1     chuck 	}
    279       1.7       scw }
    280